CN214101773U

CN214101773U - Sound production device

Info

Publication number: CN214101773U
Application number: CN202023203903.XU
Authority: CN
Inventors: 肖波; 令狐荣林
Original assignee: AAC Acoustic Technologies Shenzhen Co Ltd; AAC Optoelectronic Changzhou Co Ltd
Current assignee: AAC Technologies Holdings Shenzhen Co Ltd; AAC Microtech Changzhou Co Ltd; AAC Optoelectronic Changzhou Co Ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-08-31
Anticipated expiration: 2030-12-25

Abstract

The utility model provides a sounding device, which comprises a basin frame, a vibration system supported on the basin frame and a magnetic circuit system for driving the vibration system to vibrate and sound, wherein the vibration system comprises a vibrating diaphragm, a voice coil and an elastic supporting component; the elastic support component comprises an elastic piece and an auxiliary diaphragm; the auxiliary vibrating diaphragm comprises a folded ring part, a first connecting part and a second connecting part, wherein the first connecting part and the second connecting part are respectively bent and extended from two opposite sides of the folded ring part; the elastic part comprises a first fixed arm fixed on the basin frame, a second fixed arm arranged at an interval with the first fixed arm, an elastic arm connecting the first fixed arm and the second fixed arm, and a first thickened part and a second thickened part which are formed by the first fixed arm and the second fixed arm in a protruding manner and are close to one side of the auxiliary vibrating diaphragm respectively; one side that first thickening portion kept away from first fixed arm is laminated in first connecting portion, and one side that second thickening portion kept away from the second fixed arm is laminated in second connecting portion. Compared with the prior art, the utility model discloses a sounding device life-span is longer, and sound producing effect is better.

Description

Sound production device

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electroacoustic conversion field especially relates to an apply to vocal device of electron audio amplifier product.

[ background of the invention ]

The sound generating device is also called a loudspeaker or a loudspeaker, and is applied to a sound box to convert an audio signal into sound for playing.

The sound production device in the related art comprises a basin frame, a vibration system and a magnetic circuit system, wherein the vibration system and the magnetic circuit system are respectively fixed on the basin frame, and the magnetic circuit system drives the vibration system to vibrate and produce sound.

The vibration system comprises a voice coil, a vibrating diaphragm and an elastic supporting component, wherein the voice coil is arranged in the magnetic gap; one end of the elastic supporting component is connected with the basin frame, and the other end of the elastic supporting component is connected to the voice coil so as to support the voice coil and reduce the horizontal swing of the voice coil. The elastic support assembly generally includes an elastic member and an auxiliary diaphragm attached to a side of the elastic member away from the diaphragm. The elastic component adopts FPC preparation, has deformation portion and, supplementary vibrating diaphragm including roll over ring portion and locating roll over the ring portion relative both sides edge supplementary vibrating diaphragm connecting portion and respectively with the elastic component connecting portion that deformation portion both ends are connected, the face that elastic component connecting portion and supplementary vibrating diaphragm connecting portion are relative glues and is even, for the life-span of guaranteeing that there is not interference and elastic component when the elastic component vibrates, roll over usually that the ring needs dodge the certain distance with the arm of force of elastic component, and its width size receives the restriction, is unfavorable for realizing bigger vibration range.

Therefore, there is a need to provide a new sound producing device.

[ Utility model ] content

An object of the utility model is to provide a sound production device that life-span is higher.

In order to achieve the above object, the present invention provides a sound-producing device, which comprises a basin frame, a vibration system supported on the basin frame, and a magnetic circuit system for driving the vibration system to vibrate and produce sound, wherein the magnetic circuit system has a magnetic gap,

the vibration system comprises a vibrating diaphragm fixed on the basin frame, a voice coil inserted in the magnetic gap to drive the vibrating diaphragm to vibrate and sound, and an elastic support component fixed on the basin frame and arranged opposite to the vibrating diaphragm at an interval; the elastic support assembly comprises an elastic piece fixed on the basin frame and connected to the voice coil and an auxiliary vibrating diaphragm attached to one side, far away from the vibrating diaphragm, of the elastic piece;

the auxiliary diaphragm comprises a folded ring part, a first connecting part and a second connecting part, wherein the first connecting part and the second connecting part are respectively bent and extended from two opposite sides of the folded ring part; the elastic part comprises a first fixed arm fixed on the basin frame, a second fixed arm arranged at an interval with the first fixed arm, an elastic arm connecting the first fixed arm and the second fixed arm, and a first thickened part and a second thickened part which are formed by protruding one sides of the first fixed arm and the second fixed arm close to the auxiliary vibrating diaphragm respectively; one side that first thickening portion kept away from first fixed arm paste in first connecting portion, one side that second thickening portion kept away from the second fixed arm paste in the second connecting portion, the folded ring portion to keeping away from the direction of bullet arm is sunken and with bullet arm interval.

Preferably, the elastic member is of an integrally formed structure.

Preferably, the first thickened portion and the second thickened portion are thickened material layers respectively attached to the first fixing arm and the second fixing arm.

Preferably, the vibration system further comprises a framework, the framework is respectively connected with the voice coil and the vibrating diaphragm, and the second fixing arm is connected with the framework so as to be indirectly connected to the voice coil.

Preferably, the skeleton including laminate in the vibrating diaphragm be annular skeleton body, by the interior circumference side of skeleton body the interior extension portion that the voice coil loudspeaker voice coil direction was buckled and is extended and by the periphery side of skeleton body the extension portion that the elastic component direction was buckled and is extended, interior extension portion with voice coil loudspeaker voice coil fixed connection, outer extension portion with the second fixed arm is connected.

Preferably, the diaphragm includes a first annular edge, a second annular edge, and a vibrating portion, the first edge is disposed around the second edge and spaced apart from the first edge, an outer peripheral side of the vibrating portion is fixed to a side of the first edge close to the second edge, an inner peripheral side of the vibrating portion is fixed to a side of the second edge close to the first edge, an outer peripheral side of the first edge is fixed to the frame, and an inner peripheral side of the second edge is fixed to the magnetic circuit system; the framework body is located between the first folding ring and the second folding ring and is connected with the inner peripheral side of the first folding ring and the outer peripheral side of the second folding ring respectively so as to serve as the vibration part.

Preferably, the magnetic circuit system comprises a magnetic yoke, main magnetic steel respectively fixed on the magnetic yoke, auxiliary magnetic steel surrounding the main magnetic steel, and a magnetic conductive plate covering one side of the main magnetic steel far away from the magnetic yoke, and the auxiliary magnetic steel and the main magnetic steel form the magnetic gap at an interval; the second folding ring is arranged around the magnetic conducting plate, and one side, far away from the first folding ring, of the second folding ring is fixed on the magnetic conducting plate.

Preferably, the magnetic conductive plate includes a magnetic conductive plate body fixed to a side of the main magnetic steel away from the magnetic yoke and a magnetic conductive plate extension portion formed by the magnetic conductive plate body protruding in a direction away from the magnetic yoke, and the magnetic conductive plate extension portion passes through the second flange and at least partially extends to be exposed out of the diaphragm; the vibration system further comprises a fixing ring sleeved on the magnetic conduction plate extending portion, and one side, far away from the first folding ring, of the second folding ring is connected with the fixing ring.

Preferably, the concave direction of the first folding ring is opposite to the concave direction of the second folding ring.

Preferably, the first folding ring is recessed toward a direction close to the elastic support assembly along a vibration direction of the diaphragm, and the second folding ring is recessed toward a direction away from the magnetic yoke along the vibration direction.

Compared with the prior art, the utility model discloses an among the sounder, the elastic component of elastic support subassembly and the laminating department of supplementary vibrating diaphragm have thickening portion (first thickening portion and second thickening portion), the arm of force interference problem of elastic component can be improved in the setting of thickening portion, the distance that the book ring portion of supplementary vibrating diaphragm needs to dodge with the arm of force of elastic component reduces, and then make the book ring portion of supplementary vibrating diaphragm can do wideer, realize bigger amplitude of vibration, the problem because of the arm of force is interfered is improved simultaneously, the life-span of elastic component is longer.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a schematic perspective view of the sound device of the present invention;

FIG. 2 is an exploded view of the sound device according to the present invention;

FIG. 3 is a sectional view taken along line A-A of FIG. 1;

fig. 4 is an enlarged view E of fig. 3.

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a sound generating device 100, which includes a frame 1, a vibration system 2 supported on the frame 1, and a magnetic circuit system 3 for driving the vibration system 2 to vibrate and generate sound, wherein the magnetic circuit system 3 has a magnetic gap 36.

In this embodiment, the vibration system 2 includes a diaphragm 21 fixed to the frame 1, a voice coil 23 inserted into the magnetic gap 36 to drive the diaphragm 21 to vibrate and generate sound, and an elastic support assembly 24 fixed to the frame 1 and spaced from and disposed opposite to the diaphragm 21; the elastic supporting assembly 24 includes an elastic member 241 fixed to the frame 1 and connected to the voice coil 23, and an auxiliary diaphragm 242 attached to a side of the elastic member 241 away from the diaphragm 21.

In this embodiment, the auxiliary diaphragm 242 includes a corrugated portion 2423, and a first connection portion 2421 and a second connection portion 2422 bent and extended from two opposite sides of the corrugated portion; the elastic member 241 includes a first fixing arm 2411 fixed to the frame 1, a second fixing arm 2412 spaced apart from the first fixing arm 2411, a resilient arm 2413 connecting the first fixing arm 2411 and the second fixing arm 2412, and a first thickened portion 2414 and a second thickened portion 2415 formed by protruding one side of the first fixing arm 2411 and the second fixing arm 2412 close to the auxiliary diaphragm 242; one side of the first thickened portion 2414, which is far away from the first fixing arm 2411, is attached to the first connecting portion 2421, one side of the second thickened portion 2415, which is far away from the second fixing arm 2412, is attached to the second connecting portion 2422, and the folded ring portion 2423 is recessed in a direction far away from the elastic arm 2413 and is spaced from the elastic arm 2413.

In the present embodiment, the elastic member 241 is an integrally formed structure, that is, the first thickened portion 2414 and the second thickened portion 2415 are respectively integrated with the first fixing arm 2411 and the second fixing arm 2412. As an alternative embodiment, the first thickened portion 2414 and the second thickened portion 2415 are also thickened material layers respectively fitted on the first fixing arm 2411 and the second fixing arm 2412.

In this embodiment, the vibration system 2 further includes a bobbin 22, the bobbin 22 is respectively connected to the voice coil 23 and the diaphragm 21, and the second fixing arm 2412 is connected to the bobbin 22 so as to be indirectly connected to the voice coil 23.

In this embodiment, the bobbin 22 includes a ring-shaped bobbin body 221 attached to the diaphragm 21, an inner extension portion 222 bent and extended from an inner peripheral side of the bobbin body 221 toward the voice coil 23, and an outer extension portion 223 bent and extended from an outer peripheral side of the bobbin body 221 toward the elastic member 241, the inner extension portion 222 is fixedly connected to the voice coil 23, and the outer extension portion 223 is connected to the second fixing arm 2412. Of course, the second fixing arm 2412 may be directly connected to the voice coil 23.

In this embodiment, the diaphragm 21 includes a first annular folding ring 211, a second annular folding ring 212, and a vibrating portion 213, the first folding ring 211 is disposed around the second folding ring 212 and spaced apart from the first folding ring 211, an outer peripheral side of the vibrating portion 213 is fixed to a side of the first folding ring 211 close to the second folding ring 212, an inner peripheral side of the vibrating portion 213 is fixed to a side of the second folding ring 212 close to the first folding ring 211, an outer peripheral side of the first folding ring 211 is fixed to the frame 1, and an inner peripheral side of the second folding ring 212 is fixed to the magnetic circuit system 3; the frame body 221 is located between the first tab 211 and the second tab 212 and connected to an inner circumferential side of the first tab 211 and an outer circumferential side of the second tab 212, respectively, to serve as the vibrating portion 213.

In this embodiment, the magnetic circuit system 3 includes a magnetic yoke 31, a main magnetic steel 32 fixed to the magnetic yoke 31, a secondary magnetic steel 33 surrounding the main magnetic steel 32, and a magnetic conductive plate 34 covering one side of the main magnetic steel 32 away from the magnetic yoke 31, where the secondary magnetic steel 33 and the main magnetic steel 32 are separated to form the magnetic gap 36; the second folded ring 212 is disposed around the magnetic conductive plate 34, and one side of the second folded ring 212, which is far away from the first folded ring 211, is fixed to the magnetic conductive plate 34.

In this embodiment, the magnetic conductive plate 34 includes a magnetic conductive plate body 341 fixed on a side of the main magnetic steel 32 away from the magnetic yoke 31, and a magnetic conductive plate extension portion 342 formed by the magnetic conductive plate body 341 protruding in a direction away from the magnetic yoke 31, where the magnetic conductive plate extension portion 342 passes through the second flange 212 and at least partially extends to be exposed to the diaphragm 21. In this embodiment, the vibration system 2 further includes a fixing ring 25 sleeved on the magnetic conductive plate extension 342, one side of the second folded ring 212, which is far away from the first folded ring 211, is connected to the fixing ring 25, and one side of the magnetic yoke 31, which is far away from the auxiliary magnetic steel 33, is also covered with an auxiliary magnetic conductive plate 37.

In this embodiment, the first folding ring 211 is recessed in a direction opposite to the second folding ring 212.

In this embodiment, the first folding ring 211 is recessed toward the elastic support member 24 along the vibration direction of the diaphragm 21, and the second folding ring 212 is recessed away from the magnetic yoke 31 along the vibration direction.

The above embodiments of the present invention are only described, and it should be noted that, for those skilled in the art, modifications can be made without departing from the inventive concept, but these all fall into the protection scope of the present invention.

Claims

1. A sounder which comprises a basin frame, a vibration system supported on the basin frame and a magnetic circuit system driving the vibration system to vibrate and sound, wherein the magnetic circuit system is provided with a magnetic gap,

2. The sounder device according to claim 1, wherein the resilient member is a one-piece structure.

3. The sounder device according to claim 1, wherein the first thickening and the second thickening are layers of thickened material that respectively conform to the first and second fixed arms.

4. The sounding device according to claim 1, wherein the vibration system further comprises a bobbin, the bobbin is connected to the voice coil and the diaphragm, respectively, and the second fixing arm is connected to the bobbin so as to be indirectly connected to the voice coil.

5. The sounding device according to claim 4, wherein the bobbin comprises a ring-shaped bobbin body attached to the diaphragm, an inner extension portion extending from an inner periphery of the bobbin body to the voice coil, and an outer extension portion extending from an outer periphery of the bobbin body to the elastic member, the inner extension portion is fixedly connected to the voice coil, and the outer extension portion is connected to the second fixing arm.

6. The sounding device according to claim 5, wherein the diaphragm comprises a first annular folded ring, a second annular folded ring, and a vibrating portion, the first folded ring is disposed around the second folded ring and spaced apart from the first folded ring, an outer peripheral side of the vibrating portion is fixed to a side of the first folded ring close to the second folded ring, an inner peripheral side of the vibrating portion is fixed to a side of the second folded ring close to the first folded ring, an outer peripheral side of the first folded ring is fixed to the basin frame, and an inner peripheral side of the second folded ring is fixed to the magnetic circuit system; the framework body is located between the first folding ring and the second folding ring and is connected with the inner peripheral side of the first folding ring and the outer peripheral side of the second folding ring respectively so as to serve as the vibration part.

7. The sounding device according to claim 6, wherein the magnetic circuit system comprises a magnetic yoke, a main magnetic steel and a secondary magnetic steel surrounding the main magnetic steel respectively fixed to the magnetic yoke, and a magnetic conductive plate covering a side of the main magnetic steel away from the magnetic yoke, the secondary magnetic steel and the main magnetic steel being spaced to form the magnetic gap; the second folding ring is arranged around the magnetic conducting plate, and one side, far away from the first folding ring, of the second folding ring is fixed on the magnetic conducting plate.

8. The sounding device according to claim 7, wherein the magnetic conductive plate includes a magnetic conductive plate body fixed to a side of the main magnetic steel away from the magnetic yoke, and a magnetic conductive plate extension portion formed by the magnetic conductive plate body protruding in a direction away from the magnetic yoke, and the magnetic conductive plate extension portion passes through the second flange and extends at least partially to be exposed to the diaphragm; the vibration system further comprises a fixing ring sleeved on the magnetic conduction plate extending portion, and one side, far away from the first folding ring, of the second folding ring is connected with the fixing ring.

9. The sounder device according to claim 8, wherein the first hinge is recessed in an opposite direction from the second hinge.

10. The sounding device according to claim 9, wherein the first hinge ring is recessed toward the elastic support assembly along a vibration direction of the diaphragm, and the second hinge ring is recessed away from the yoke along the vibration direction.